<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <button v-permission="{action:'add'}"></button>
  </div>
  <script type="text/javascript" src="js/vue.js"></script>
  <script type="text/javascript">
    /*
      实现自定义指令v-permission, 让使用这条指令的元素, 可以将其内容设置为action所指明的字符串
    */
    Vue.directive('permission',{
      inserted : function(el,binding){
        el.innerHTML = binding.value.action
      }
    })
    var vm = new Vue({
      el: '#app',
      data: {

      },
      methods: {
      }
    });
  </script>
</body>
</html>
